JP3170195B2 - Press mold positioning structure of compression volume reduction press machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a press die positioning structure of a press for compressing and reducing various kinds of waste such as metal scrap.

[0002]

2. Description of the Related Art Various kinds of waste (scrap) are subjected to a so-called volume reduction treatment to reduce the bulk in terms of transportability and handling. Many compression (press) means are used for the volume reduction. For example, a conventional compression volume reduction press for scrap metal is shown in FIGS. In the press machine, a carriage 3 on which a cylindrical press die 2 is mounted is movably provided on an upper surface of a bed 1. The carriage 3 is provided with a press position A at which a presser 4 moves vertically above the bed 1 and a metal. The scrap (workpiece a) reciprocates between a supply position B where the scrap is put into the press die 2 (see FIG. 14).

The carriage 3 is moved by a hydraulic cylinder 8, and by driving the hydraulic cylinder 8, the carriage 3 is guided and moved by a guide 8a, and hits a stopper 8b. (Press position A).

A frame F that rises above the bed 1 is provided with a hydraulic cylinder 6 for driving the presser 4 and a slider 7 that moves up and down toward the bed 1. The slider 7 has a bifurcated fork shape in plan view having a concave portion 7a into which the press die 2 is fitted from the supply position B side (see FIG. 14).
(See FIG. 13), and as the slider 7 is lifted, the press die 2 is lifted (for details, see the embodiment).

Now, as shown by the chain line in FIG.
The press die 2 is moved to the press position A by the hydraulic cylinder 8 as shown by the solid line, and the presser 4 is lowered to compress and reduce the scrap. Next, after the presser 4 is raised and moved out, the press die 2 is moved to the supply position B, and the scrap a is charged again. Thereafter, the same operation is repeated.

[0006] When the compression volume reduction scrap (pellet) a 'in the press die 2 reaches a required amount (size), the pressing element 4
13 is applied to the upper surface of the scrap a ′ without applying a pressing force, the hydraulic cylinder 5 is actuated to lift the press die 2 by the slider 7 as shown by the chain line in FIG. After the presser 4 is raised, the workpiece a ′ that has slipped out is discharged from the carriage 3 by the hydraulic cylinder 9 and transferred to an appropriate position (see FIGS. 12 and 14).

[0007]

In this type of press, a large force is applied to the press die 2 during compression by the presser 4, and a biased force in the lateral direction or the like is generated depending on the mode of the scrap a being charged. Works. Therefore, the cart 3
It is necessary to firmly support the press die 2, and conventionally, as shown in FIG. 15, a cylindrical die guide 10 is mounted on the carriage 3. The mold guide 10 must resist the pressing force and the deflection force in a state where the press mold 2 is fitted, and becomes large as shown in the figure, and requires a reinforcing rib 10a and the like. .

The mold guide 10 has an opening 10b for discharging the reduced volume scrap a '. The opening 10b is determined in consideration of the strength of the guide 10 and the like, and cannot be made larger than necessary. For this reason, the height of the reduced volume scrap a 'is limited by the height L of the opening 10b (see FIG. 15). The limitation on the volume reduction height means that the input amount of scrap a must be constantly controlled. If the input amount is large and the height of the reduced volume scrap a 'is higher than L, the payout is not performed and the operation is stopped. On the other hand, in order to surely eliminate the work stoppage, the input amount is suppressed to a safe range where it can be paid out, and the size of the reduced volume scrap a 'is reduced, and the operation rate is reduced.

Further, providing the mold guide 10 on the carriage 3 requires an installation area, and inevitably,
Becomes larger. Increasing the size of the carriage 3 causes the bed 1 and the frame F to increase in size, and requires a large driving force. Therefore, conventionally, the hydraulic cylinder 8 has been used. According to the hydraulic cylinder 8, the guide 8a, the stopper 8b, and the like of the carriage 3 must be provided on the bed 1 (see FIGS. 12 and 14), and the bed 1 is increased in size to secure the installation space. Such an increase in the size of the trolley 3, the bed 1, and the frame F causes an increase in the size of the entire press, and a reduction in size is desired in terms of installation space.

SUMMARY OF THE INVENTION It is an object of the present invention to reduce the size of a compression volume reduction press under the above circumstances, to increase the volume reduction scrap a ', and to increase the operation rate.

[0011]

According to a first aspect of the present invention, there is provided an apparatus for pressing a press die by reciprocating a workpiece supply position B and a press position A with the press die. In a compression volume reduction press that compresses and reduces the volume of an object to be processed by a child, lifts a press mold, and discharges the reduced object to be processed from a bogie, the lower part of the press mold is fitted on the upper surface of the bogie. A round recess is formed, and a hook portion is provided at the fork portion of the slider, the hook portion being engaged with a side surface on the front side from the center line of the flange of the press die. The structure is such that it can be disengaged from the flange by movement.

According to this structure, the lower portion of the press die is supported by fitting to the upper surface of the bogie, while the upper portion of the press die is fully fitted by fitting into the recess of the slider and engaging the hook with the flange. Supported by bearing. That is, the press die is supported in all directions above and below it. Since the upper and lower supports obtain a stable supporting force, there is no problem in firmly supporting the press die against the deflecting force during compression. For this reason, the conventional mold guide 10 becomes unnecessary, and the size limitation of the volume reduction scrap a 'by the mold guide 10 is eliminated.

After the volume has been reduced to the required height, the press die is lifted, and the object to be removed is discharged from the bogie as in the prior art.

According to a second aspect of the present invention, in the press die positioning structure of the compression and volume reduction press having the above-mentioned structure, the bogie is a self-propelled type, and the bogie is fitted to a lower surface of the bogie and an upper surface of the bed at the press position. A key or a key groove is provided, and the carriage is positioned at the press position and descends, and the lower surface of the carriage comes into contact with the upper surface of the bed, and the key is fitted into the key groove, and the press die is lowered by the lowering of the carriage. With the downward movement, the configuration is such that the flange of the press die is locked to the hook.

According to this structure, the cart can be reduced in size because the cart is self-propelled. In this self-propelled bogie, when the volume is reduced by compression, the bogie is lowered and the lower surface abuts on the upper surface of the bed. The pressing force works, and there is no fear that the wheel shaft is damaged. At this time, the bogie is positioned by fitting the key and the key groove, so that the bogie does not move unnecessarily. Also,
At the same time as the contact and the fitting, the hook and the press mold flange are also locked.

According to a third aspect of the present invention, in the above-described press die positioning structure of the self-propelled bogie compression and volume reducing press, wheels of the bogie can be run on rails on the bed, and the wheels and rails And the rail on which the wheel is mounted when it is located at the bogie press position is divided, and the divided rail pieces can be moved up and down by the cylinder, and The lower surface of the carriage comes into contact with the upper surface of the bed by the movement of the carriage.

With this configuration, the wheels travel along the rails, and the movement of the bogie is stabilized. Further, at the time of compressing and reducing the volume, the wheels descend and the lower surface of the bogie comes into contact with the upper surface of the bed.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention is shown in FIGS. 1 to 11. The same reference numerals as those described above denote the same parts, and a description thereof will be omitted. That is, in this embodiment, the bogie 30 and its moving mechanism, the press die 20, and its lifting slider 70 are improved in the above-described compression volume reducing press.

As shown in FIG. 10, the bogie 30 has a concave portion 31 at the center of the upper surface where the lower part of the press die 20 is fitted, and on both sides of the concave portion 31, the scrap a 'after compression and volume reduction is dispensed. Opening 31a is formed. A plate (sleeve) such as SKD61 that can withstand compression may be provided on the inner surface of the concave portion 31.

As shown in FIG. 8, the wheels 32a, 3a are provided before and after the truck 30 via a support frame 35 and bearing bearings 37.
2b are mounted, and the wheels 32a, 32b run on the rails 11a, 11b on the bed 1. One of the wheels 32a has a ridge 32a 'on its entire circumference as shown in FIG.
Are formed on the rail 11a.
As the wheels 32a run in the grooves 11a "a of the" a ", the bogie 30 moves stably without derailing. For this reason, the conventional large guide 8a may be provided or the guide may be provided. It is not necessary to form the slide groove 8a on the side of the truck, and the other wheel 32b and the rail 11b may have the same fitting structure.

A moving motor 33 is provided at the front of the carriage 30.
The wheels 33 a and 32 b are rotated by the motor 33 via the reduction gear 34, and the truck 30 travels (moves). The motor 33 is driven by a controller (not shown) via a cable carrier. The controller moves the carriage 30 not only at the press position A and the supply position B but also at the carriage 3
It is appropriately moved to a zero maintenance position (a position distant from the supply position B) or the like. In addition, the traveling speed of the truck 30 is appropriately selected, and an optimal operation cycle of the press machine is set based on the change in the amount of the scrap a and the weight of the reduced volume scrap a '.

A key groove 36 is formed on the lower surface of the carriage 30 as shown in FIGS. 7 and 10, and when the carriage 30 is lowered to the pressing position A as shown in FIG.
The upper key 12 fits into the key groove 36, thereby restricting the bogie 30 from moving in an unreasonable manner. The key 12 may be provided on the side of the carriage 30 and the key groove 36 may be provided on the side of the bed 1.

Each wheel 3 of the carriage 30 at the press position A
Rails 11a and 11b corresponding to 2a and 32b are divided as shown in FIG. This split rail piece 11
a ′ and 11b ′ can be moved up and down by a hydraulic cylinder 13 that sucks and discharges oil as indicated by an arrow.
As shown in (a), the rails are at the same level as the rails 11a and 11b, and as shown in FIG.
The a and 32b fall into the space, and the lower surface of the carriage 30 contacts the upper surface of the rails 11a and 11b (bed 1). For this reason, at the time of compression volume reduction described below, even if a pressing force acts on the carriage 30, the force does not act on the axles 32a and 32b. When the carriage 30 moves (runs), the divided rail pieces 11a 'and 11b' return as shown in FIG. The lowering amount of the carriage 30 may be appropriately set, for example, 15 mm. At this time, the protruding amount of the key 12 from the upper surface of the bed 1 is 12 mm.
Eliminates contact with the bottom surface.

Lifting slider 70 for press die 20
As shown in FIG. 10, the recess 70a is formed in the same manner as in the prior art.
Are formed, and a protruding ridge 71 that fits into the groove 22 of the press die 20 is provided on the inner surface thereof. The ridge 71 extends from the center line of the recess 70 in the front-rear direction (the moving direction of the press die 20) to the front side 7
1a (the supply position B side) extends linearly in that direction. The width of the opening at both ends of the protruding ridge 71 is
The press die 20 placed on the carriage 30 is smoothly fitted into the ridge 71 because the inner diameter of the groove 22 is slightly larger than the inner diameter of the groove 22.

On the other hand, the upper fork-like portion 7 on the front side of the ridge
The leading end of Ob is not a straight line but a hook 72 extending inward with the curvature of the outer diameter of the flange 21 of the press die 20 (see FIGS. 6 and 10). For this reason, the press die 20 placed on the carriage 30 fits into the recess 70a of the slider 70 with the ridge 71 positioned below the groove 22, as shown in FIG. Is located at the press position A and descends, the ridge 71 is located above the groove 22 as shown in FIG.
The zero flange 21 fits into an arc formed by the inner surface of the hook 72. In this state, as can be understood from the drawing, the front side of the center line of the flange 21 is supported by the hook portion 72, and the pressing die 20 is moved toward the front side (the supply position B side).
Is prevented from moving. That is, the press mold 20 in this state is positioned at the press position A with its upper and lower portions being supported by the concave portion 31 of the carriage 30 and the slider 70 so as not to move in all directions. When the carriage 30 moves, the carriage 30 is lifted by the hydraulic cylinder 13 to be in the state shown in FIG.

As shown in FIGS. 1, 2, 4, and 6, the slider 70 has a guide 74 and a guide
Go up and down along 5. The guide give 75 is a guide 74
Are mounted on the guide 74 by a pressing bolt 76a screwed into the guide 74 and a tension bolt 76b screwed into the gib 75 through the guide 74.
The inclination in the up-down direction is adjusted by adjusting the screwing amount of b.

This embodiment is configured as described above. As in the prior art, as shown by the dashed line in FIGS.
In the meantime, after the scrap a is put into the press mold 20, the carriage 30 is moved to the press position A as shown by the solid line, the carriage 30 is lowered, and the lower surface of the carriage A is brought into contact with the bed 1 and , Flange 21 of press mold 20
Into the hook 72 of the slider 70.

In this state, the pressing element 4 is lowered by the hydraulic cylinder 6 to compress and reduce the volume of the scrap a. Next, after the presser 4 is lifted and moved out, the press die 20 is moved to the supply position B, and the scrap a is charged again. Thereafter, the same operation is repeated.

When the compression volume reduction scrap a 'in the press die 20 becomes a required size, the slider 70 is raised by the hydraulic cylinder 5 while the pressing element 4 is in contact with the upper surface of the scrap a'. The press mold 20 is lifted.
By this lifting, the compressed volume-reduced scrap a ′ that has escaped from the press mold 20 is lifted by the presser 4,
It is dispensed from the carriage 30 by the hydraulic cylinder 9 and transferred to an appropriate position. At this time, there is nothing obstructing the movement around the scrap a 'like the conventional mold guide 10. For this reason, the scrap a 'can be made sufficiently large, and the size of the scrap a' may vary greatly, so that it is not required that the input amount of the scrap a be accurate.

If a self-propelled trolley is used as in this embodiment, the trolley 30 can be moved arbitrarily within the movable range of the bed upper surface. Change the working range. In addition, the self-propelled trolley 30 is housed in the frame F, and the installation place of the entire installation is not widened, so that the workability is good and the safety is high. On the other hand, the conventional hydraulic cylinder 8 must be protruded and installed at the front of the bed 1,
A large installation space is required for the entire installation, and workability is poor. However, the effect of vertically supporting the press die 20 can also be obtained by moving the carriage 30 by the hydraulic cylinder 8.

[0031]

The present invention is constructed as described above, and the press die is supported in all directions immovably at the upper and lower portions, so that the support is stable. For this reason, the conventional mold guide 10 becomes unnecessary, and the size of the bogie can be reduced, and the size reduction of the volume reduction scrap by the mold guide is eliminated, and the size can be maximized. ,
Compared with the related art, the processing amount per operation is increased, and the operation rate is improved. In addition, if there is no restriction on the volume reduction scrap, the restriction on the shape and size of the input scrap is also relaxed, and it becomes unnecessary to manage the input amount of the scrap more severely than in the conventional case. Furthermore, if the cart is miniaturized, its drive mechanism, frame and the like can be miniaturized, and the entire press can be miniaturized.

Further, if the carriage is of a self-propelled type, and the lower surface thereof is brought into contact with the bed and keyed, the positioning of the press mold is ensured, and the press mold does not move unnecessarily. , Stabilize. In the self-propelled type, the moving range can be selected arbitrarily, which means that the scrap loading position can be determined according to the purpose, expanding the working range and easily moving the bogie to the press die exchange and repair position And the work can be performed efficiently. In the self-propelled type, the control of the moving speed can be arbitrarily selected,
This means that the optimum operation cycle can be selected based on changes in the amount of scrap input, the weight of the reduced volume scrap, and the like, and work can be performed efficiently.

Further, if a configuration such as running of the wheels on the rails, raising and lowering of the wheels, etc. is employed, the wheels are not damaged and the running of the bogie is stabilized.

[Brief description of the drawings]

FIG. 1 is a front view of one embodiment.

FIG. 2 is a partially cut right side view of the embodiment.

FIG. 3 is a plan view of the embodiment.

FIG. 4 is a cut-away front view of the embodiment.

FIG. 5 is a sectional view taken along line XX of FIG. 4;

FIG. 6 is a sectional view taken along line YY of FIG. 4;

FIG. 7 is a right side view of the main part of the embodiment;

FIG. 8 is a front view of an essential part of the same embodiment.

FIG. 9 is an explanatory view of a lifting / lowering action of the wheel of the embodiment.

FIG. 10 is a perspective view of a lifting slider and a bogie according to the embodiment.

FIG. 11 is an explanatory view of the locking operation between the slider and the press die of the embodiment.

FIG. 12 is a front view of a conventional example.

FIG. 13 is a partially cut right side view of a conventional example.

FIG. 14 is a cut-away plan view of a conventional example.

FIG. 15 is a perspective view of a conventional bogie and a press die.

[Description of Signs] 1 Bed 2, 20 Press mold 3, 30 Cart 4 Pusher 5 Hydraulic cylinder for slider 6 Hydraulic cylinder for presser 7, 70 Slider for lifting press mold 8 Hydraulic cylinder for moving cart 9 Compression volume reduction Hydraulic cylinder for dispensing used scrap 10 Press die guide 11a, 11b Rail for wheel 11a ', 11b' Split rail piece 11a "Groove for wheel 12 Key 13 Hydraulic cylinder for raising and lowering split rail piece 21 Press die flange 22 Press die groove 31 Press Die Fitting Recess 31a Scrap Discharging Opening 32a, 32b Truck Wheel 32a 'Rail Groove Fitting Rib 33 Truck Moving Motor 34 Reduction Gear 36 Key Groove 70a Slider Press Mold Fitting Recess 70b, 70b Slider Forked fork part 71 Press ridge for fitting 72 Part 74 slider guide 75 Gaidogibu 76a pressing bolt 76b tensile bolts a scrap a 'compression compaction already Scrap A press position B scrap supply position F frame

Claims (3)

(57) [Claims] 1. A trolley 30 on which a cylindrical press die 20 is mounted is movably provided on the upper surface of a bed 1.
Press position A where the presser 4 moves up and down above the bed 1
And a workpiece F is reciprocated between a supply position B where the workpiece a is put into the press die 20, and a hydraulic cylinder 6 for driving the presser 4 is provided on a frame F that rises above the bed 1. , Bed 1
A slider 70 is provided which moves up and down toward the fork. The slider 70 has a bifurcated fork shape in a plan view having a concave portion 70a into which the press die 20 is fitted from the supply position B side. The press die 20 is lifted by raising the slider 70 against the lower surface of the flange 21 of the press die 20.
In the compression volume reducing press machine for appropriately discharging the workpiece a 'coming out of the bogie 30 from the bogie 30, a concave portion 31 in which the lower part of the press die 20 is formed is formed on the upper surface of the bogie 30, and the fork portion of the slider 70 is formed. 70b
Is provided with a hook portion 72 which is engaged with the side surface on the front side of the center line of the flange 21 of the press die 20. The hook portion 72 is moved upward and downward by the relative movement of the slider 70 and the press die 20. A press die positioning structure for a compression volume reducing press, wherein the press die positioning structure can be disengaged from the press die. 2. The trolley 30 is a self-propelled type.
The lower surface of the bed 1 and the upper surface of the pressing position A of the bed 1 are provided with the keys 12 or key grooves 36 which are fitted to each other.
The lower surface abuts against the upper surface of the bed 1, the key 12 is fitted into the key groove 36, and the press die 20 is moved downward by the descent of the carriage 30, so that the hook 72 is pressed into the press die 2.
The flange (21) is locked.
The press die positioning structure of the compression volume reduction press described above. 3. The wheels 32a, 32b of the carriage 30 can travel on rails 11a, 11b on the bed 1,
The wheels 32a and the rails 11a are fitted to each other to make it difficult to remove the wheels.
The rails on which the wheels 32a and 32b are placed are divided, and the divided rail pieces 11a 'and 11b' can be moved up and down by the cylinder 13, and the lower surface of the carriage 30 is moved downward to move the lower surface of the carriage 30 upward. 3. The structure for positioning a press die of a compression volume reducing press according to claim 2, wherein the press die is adapted to abut against the pressing die.